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ClickHouse Cloud: Distributed Cache performance degradation in AWS us-east-1

Affected components: us-east-1

Timeline of updates

1. investigating2026-09-14 20:36 UTC

   ClickHouse is investigating degraded Distributed Cache performance affecting multiple ClickHouse Cloud customers. Distributed Cache is a feature currently in Private Preview. We will provide further updates as they become available.

2. identified2026-09-14 21:28 UTC

   ClickHouse has identified the cause and proceeding with remedying impacted services.

3. monitoring2026-09-14 22:41 UTC

   Impacted services have been updated and are now fully operational. ClickHouse is monitoring.

4. resolved2026-09-15 00:35 UTC

   This incident has been resolved. Distributed Cache performance in the region is back to normal. Please contact ClickHouse Support if any services in the Distributed Cache Private Preview are experiencing any remaining issues: https://console.clickhouse.cloud/support

Impact, status and times are the vendor’s own, as last archived. View on status.clickhouse.com (opens in new tab). ClickHouse Cloud profile · Recent ClickHouse Cloud incidents · Markdown · JSON